Clamping-machine.



APPLICATION FILED .TUNE 23, 1908.

Patented Apr. 13, 1909 2 SHEETS-SHEET 1.

attenua# -m "arms PETERS-co.. wAsmNcwN. n. c.

A.' E. PALMER. CLAMPING MACHINE.

APPLIOATION FILED JUNE 23, 1908.

Patented Apr. 13, 1909.

2 SHEETS-SHEET 2.

@Minnow NITEB STATES PATENT FFICE.

ALBERT E. PALMER, OF OWOSSO, MICHIGAN.

CLAMPING-MACHINE To all whom it may concern:

Ee it known that I, ALBERT E. PALMER, a citizen of the United States,residing at Qwosso, in the county of Shiawassee :and State of Michigan,have invented certain new and useful Improvements in Clamping-Mm chines,and do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, and to the characters of referencemarked thereon.

The object of my invention is to provide a machine in which, forexample, strips of wood to be glued together may be clamped, whichmachine will render the operation of assembling the pieces for clampingthe same and removal of the glued or united pieces capable of beingconveniently and expeditiously performed, and in which machine a largequantity of work may be carried in comparatively small space, and tothis end the invention consists in the machine constructed substantiallyas hereinafter specified and claimed.

Referring to the drawings-Figure 1 is a perspective view of a machineembodying my invention, showing only a portion of the clamp-supportingarms, and pieces of wood being shown mounted on some of the arms thatare shown', those portions of the machine omitted being omitted in theinterest of clearness; Fig. 2 is a detail view in perspective of one ofthe clamp-supporting arms; and Fig. 3 a horizontal section on the line33 of Fig. 1.

In the embodiment of the invention illustrated in the drawings, a drumor reel-form carrier is employed that is constructed of two circularopen work heads or spiders 1() mounted on a horizontal shaft 11 and twocircular concentric series of parallel rods 12 that connect the heads orspiders, and of course extend parallel with the shaft. The ends of therods project to the outer side of the heads or spiders, and they arethreaded to receive securing nuts 13. The ends of the shaft also projectbeyond the heads or spiders, and are respectively journaled in bearingsat the top of A-shaped side frames 14 that are bolted to floor sills orbeams 15. The drum or reel may thus be revolved. To lock it from turningexceptwhen desired, the locking mechanism is employed, and which, asshown best in Fig. 3, may consist of two Specification of LettersPatent.

Application led .Tune 23, 1908.

tial one.

Patented April 13, 1909.

Serial No. 440,041.

similar but oppositely extending pawls or dogs 16, pivoted respectivelyto lugs on the inner side of one or both of the side frames, so thattheir free ends are in position to engage the opposite sides of one ofthe nuts 13, and thus lock the reel or drum from rotation in eitherdirection. To remove the ends of the locking dogs from the path of thenuts, and thus leave the reel or drum free to be turned, I attach oneend of a cord or rope 17 to the free ends of the dogs, and the other endto a crank arm 18 on a rock shaft 19, journaled in bearings on thefloor, which shaft is provided with one or more treadles 20, by thedepression of which the shaft may be rocked in the direction to pull therope to withdraw the dogs or pawls from the path of the nuts. Springs16a acting upon the dogs operate normally to move them to and hold themin position for engaging a nut. It will be observed that the lockingmeans described, especially since it utilizes the nuts on the rods, is avery simple and yet efiicient device.

Mounted on the rods in pairs, are radially extending arms 21, theirappearance and arrangement resembling that of the spokes of a wheel, andon each arm a clamp is mounted, consisting of a pair of jaws, one jaw 22being mounted at the outer end of the arm, and provided with anadjusting and clamping screw 23, and the other jaw 24 being slidablymounted on the arm and adapted to be held by means of a dog that engagesa series of ratchet teeth 25 in the arm in such position in a radialdirection as may be required to suit the size and number of the stripsor pieces to be glued and clamped. Each arm is perforated for thepassage of the rods of the two concentric series, and is slidablelongitudinally of its pair of supporting rods so that the distancebetween two arms of a pair may he varied to suit the length of thestrips or pieces to be clamped, and in order to steadily orsubstantiallysupport the arm, its inner rod-engaging end is forked or bifurcated soas to make its point of engagement with the innermost rod widely enough.separated to make the support a steady and substan- It will be evidentthat one or more circular series of pairs of arms may be em bodied inthe same machine, the number of series employed depending of course uponthe length of the machine.

The operation of the machine will be readily understood. By reason ofthe mounting oi' the reel or drum on a horizontal axis, a set of clampseither for the placing therein of the strips to be glued or clamped, orthe removal of the glued strips therefrom, is presented to the workmanat a most Convenient height and in a most convenient position, for theperformance of the work, and one set of clamps after another may be mostreadily emptied and reiilled, and it will he evident that a greatquantity oll work may be carried i by the machine at one time.

It of course" is to be understood that the machine comprises a completecircular series of arms 21, a portion of such series only being shown inFig. l in order to more clearly illustrate therein the construction ofthe reel.

Having thus described the invention, what is claimed is` l. A clampingmachine having a rotatable series of radially extending arms, clamps onthe arms comprising eoacting aws arranged in pairs, the jaws oi' a pairalining in a direction radial to the axis oi' rotation olI the series,and means supporting said rotatable series oi' arms with the axisthereolI in a horizontal position.

2. A clamping machine having a plurality of rotatable series oi'radially extending arms, and clamps on the arms comprising co-actingjaws arranged in pairs, one jaw being nearer the axis oi' rotation thanthe other, and the arms of the several series alining in a directionparallel with the axis of rotation, whereby an extended body may besupported at several points of its length by a series olI arms.

3. A clamping machine having a rotatable series oi radially extendingclamp-carrying arms, the arms being arranged in pairs and each armcarrying clamping jaws, the arms of a pair being adjustable toward andfrom each other in a direction parallel with the axis oi' rotation.

4. In a clamping machine the combination Y' of a drum or reel composedoi heads and concentric series of connecting rods, and clampcarryingarms mounted on the rods, the arms being arranged in pairs and movabletoward and from each other.

6. ln a clamping machine the Combination ol' a drum or reel composed ofheads connected by rods, Clamp-carrying arms mounted on the rods,projections on a head, and a locking device to cooperate with said projections.

In testimony whereoll l allix my signature in presence ol' twowitnesses.

ALBERT E. PALis/JER.

itnesses:

GERTRUDE M. WoosTER, MINNIE L. DONIGAN.

